Added one more element to illustrate a deletion at the end.

ascent/src/features/ascent/ascent.js

@@ -5,7 +5,7 @@ import { deleteToSort } from './sortingByDeletion.js';
 const SYNTAX_ERROR = 'Please enter a comma-separated list of numbers.';
 
 export function Ascent() {
-  const [input, setInput] = useState('30, 10, 60, 20, 40, 50');
+  const [input, setInput] = useState('30, 10, 60, 20, 40, 50, 0');
   const onInputChange = (event) => setInput(event.target.value);
 
   const list = input.split(',').map((value) => value.trim()).filter((value) => value.length > 0).map(Number);